code: def test_bias_dims_custom(self):
      b, d1, d2, d3 = range(1, 5)
  
      def f():
          mod = bias.Bias(bias_dims=[1, 3])
          out = mod(jnp.ones([b, d1, d2, d3]))
          self.assertEqual(mod.bias_shape, (d1, 1, d3))
          return out
  
      f = transform.transform(f)
      params = f.init(None)
      out = f.apply(params, None)
      self.assertEqual(params["bias"]["b"].shape, (d1, 1, d3))
      self.assertEqual(out.shape, (b, d1, d2, d3))
  
file_path: dm-haiku/haiku/_src/bias_test.py
imports: from absl.testing import absltest
  from haiku._src import bias
  from haiku._src import test_utils
  from haiku._src import transform
  import jax.numpy
  import numpy
label_desc: Use image node_id 4 for calling the BiasTest obj's underlying member method code with example usage: obj.test_bias_dims_custom() and returns: out